/ Thesaurus / M Synonyms of mass spectrum Find synonyms for: Noun1. mass spectrum, spectrumusage: a distribution of ions as shown by a mass spectrograph or a mass spectrometerWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language